各国经济形势的变化往往会在汇率上表现出来,如美元对人民币的汇率,2007年以前一直在100美元兑换820—830元之间波动。这表示 ( )
— What do you think of the film “Avatar”? — ______ it with “2010”, I have ______ the former.
We must work hard to _____ a good knowledge of English.
Who else can I depend on for help, if not ______?
— How you are looking! — I’m really terrible! It has been one month ______ I ______.
It was not until she got home __________ Jennifer realized she had lost her keys.